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emgr - Empirical Gramian Framework

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04 Feb 2013 (Updated )

A framework for computating empirical gramians. Compatible with Octave and Matlab.

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Description

The emgr framework enables the computations of seven types of empirical gramians. For state reduction: controllability gramian, observability gramian, cross gramian and linear cross gramian. For parameter reduction: sensitivitiy gramian and identifiability gramian. For combined state and parameter reduction: the joint gramian. Gramian-based model order reduction of linear and nonlinear control systems. For more info, documentation and examples see http://gramian.de

Required Products MATLAB
MATLAB release MATLAB 7.12 (R2011a)
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Updates
14 Feb 2013

.

25 Feb 2013

some updates

26 Feb 2013

minor update

27 Feb 2013

small update

01 Mar 2013

solver update

11 Apr 2013

doc update

18 Apr 2013

mini update

21 May 2013

minor maintenance

17 Jun 2013

minor update

19 Jun 2013

performance tweaks

24 Jun 2013

minor changes

26 Jun 2013

leapfrog solver

08 Jul 2013

input fix

15 Jul 2013

clean up

23 Jul 2013

minor fixes

02 Aug 2013

speed up

07 Aug 2013

small update

12 Aug 2013

more updates

19 Aug 2013

mini update

09 Sep 2013

more vectorization

30 Sep 2013

speed up

14 Oct 2013

minor optimization

21 Oct 2013

substantial acceleration

24 Oct 2013

code clean up

07 Nov 2013

mini update

20 Nov 2013

minor fixes

17 Dec 2013

new version

13 Jan 2014

more updates

04 Feb 2014

input upgrade

13 Feb 2014

midpoint + robust

18 Feb 2014

incremental update

21 Feb 2014

some clean up

06 Mar 2014

some fixes

07 Mar 2014

more fixes

25 Mar 2014

new version

02 Apr 2014

compatibility

04 Apr 2014

maintenance

11 Apr 2014

more maintenance

21 May 2014

some fixes and a new solver

28 May 2014

minor update

03 Jun 2014

maintenance update

18 Jul 2014

more maintenance

12 Sep 2014

major refactoring

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